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Variable Grid Detection

IP.com Disclosure Number: IPCOM000051050D
Original Publication Date: 1982-Aug-01
Included in the Prior Art Database: 2005-Feb-10

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Gruidel, DR Honomichil, LL Lujan, CA [+details]


In mark sense reading of predefined mark sense sheets, it is desirable to be able to rapidly adapt the reader to various mark grids. This can be done by dividing the mark sense operation into two processes: vertical position detection and horizontal position detection. In addition, the horizontal position detection process may be further controlled to look for selectable size marks at selected spaces.